Patents by Inventor Daniel J. Damratoski

Daniel J. Damratoski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4575074
    Abstract: An exercise weight that has a handgrip and a hollow body disposed about the handgrip so that the mass of the body and of any material with which it might be filled will be evenly disposed about the hand of the user. The hand grip has a rectangular cross-section so as to engage the articulations of the hand. A flat surface is provided above the handgrip so that the weight can be rested upon the thumb and first finger of the user's hand. The outer walls of the body are sloped and join the bottom at an obtuse angle. The distance between the handgrip and one of the inner walls of the body is such that the device may be used as either a hand weight or a foot weight.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: March 11, 1986
    Inventor: Daniel J. Damratoski